Remove some unused lines. Set Version to git tag. Set default value in case there is no git.
Remove some unused lines. Set Version to git tag.
Set default value in case there is no git.

Signed-off-by: Eberhard S. Amann <abf3c3727151683d37ede95f5333c0b4875fd19d@de.ibm.com>

open-power/snap,open-power/snap,open-power/snap,open-power/snap,open-power/snap